pete williams has reported now that his brother, his own brother in fleeing in that mercedes suv ran over his own brother. eventually that suspect died at the hospital. but we can't overstate how remarkable it's been this morning, chuck, that there is a lockdown of a major american city. a shelter in place, as it is known. this is the kind of thing you hear about when there's chemical leaks or huge gas explosions. people stay inside for their own health and well being. we talked to police chief john timany who headed up the police departments in philadelphia and we talked to michael chertoff this morning and neither of them could remember a situation, not only where this has happened but where it is considered to shut down and ask all residents of a major american city to go inside. they talked about it during 9/11, but decided against it. you have people in a middle class town seeing s.w.a.t teams out their window. a no-fly zone over a small town in the western suburbs of boston. it is unprecedented. >> it's unbelievable there, willie. thank you. >>> want to bring in roger, a long-t